Pump-regulator



m; 626,2!7. Patented lune 6,1899. 1. BUYLSTON.

PUMP REGULATOR.

(Application filed Nov. 7, 1898.)

(No Model.)

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UNi'rnn STATES PATENT I OFFIcE.

JOIIN BOYLSTON, OF CHICAGO, ILLINOIS.

PUMP-REGULATOR.

SPECIFICATION formingpart of Letters Patent No. 626,217, dated June 6, 1899.

Application filed November 7, 1898. Serial No. 695,776. (No model.)

To (all whom, it Til/[Ly con/007 72,:

Be it known that 1, JOHN BOYLSTON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Pump-Regulators, which are fully set forth in the following specification, reference being had to the accompanying drawings, forming a part hereof, and in which- Figure 1 shows my said new device in side elevation. Fig. 2 shows a transverse section of the upper part of the diaphragm-chamber.

Like letters of reference denote like parts.

The object of my invention is to produce a simple, efficient, and very sensitive valveregulator for pumping-engines and like service, adapted to be set to any desired point or desired capacity and from which it may be varied by a very quick and slight adjustment of my said mechanism. To attain said desirable ends, I construct my said new device in substantially the following manner, namely: To any balanced steam-valve a, (here represented by its chamber a,) having a stem g, I attach a lever Z, fulcrumed atf, of which its longer arm is suitably weighted, as with weights B or any equivalent mechanism and so near said fulcrum as to make the distance between the parts f and g a long arm of a le ver, and thus giving both ends of the lever Z the same functions relatively, one relating to the weight and the other to the valve in a, by attaching an adjustable connecting mechanism, consisting of two rods h and h, whereof one is provided with a right-hand thread and the other with a left-hand thread. Aninternally-threaded sleeve '5 receives and adjusts the ends of said rods by means of a handwheel C, forming a part of said sleeve. Said threaded rods are articulated to levers 7.: and l, as shown, whereof the lever is fulcrumed on a bolt 6 in a fork on the cap-piece of the diaphragm-chamber c, and near said bolt 6 is received the actuating force or weight at e to the lever 70, which is at the end of a stud centered in a disk j, resting on a diaphragm d in a chamber c. Said diaphragm is held between the flanges of said chamber and is acted upon by fluidpressure received through a pipe or, which discharges into and fills said chamber (indicated by the broken lines) below the diaphragm. The upward pressure of the fluid in said chamber raises said dia phragm, and with it rises the disk j, exerting its lifting force on the disk-stem at c, which in turn raises the lever 7c, and with it the connecting mechanism h h at the long arm of the lever k, connected to the lever Z near its fulcrum f of the lever Z, whereby through the motion of said connected mechanism the valve in the chamber a is closed in proportion to such motion. The regulable screw-stud m holds the lever 7c from moving below a fixed point, and through said connection the lever l is also held to said adjustment. Then the normal position of the lever 70 is established through said bolt, the hand-wheel C is turned until the desired amount of steam is obtained to work the pump. From what has been said it is evident that whenever the force on the diaphragm is increased enough to overcome the weight 13 the valve-stem g will be moved to close its valve; also, that whenever a suddenly-increased demand for water comes it can be supplied by simply turning the handwheel C so as to lower the weight 13, and thus open the steam-valve at the other end of the lever Z until the desired volume of water is obtained. By this arrangement of my levers a very slight motion of the diaphragm will be sufficient to give a large travel to the valve and that at the same time the levers may be made quite light and short and the weight for the lever comparatively small, yet producing a very efficient and cheap mechanism. To the pipe 72, which leads from a water-tank or like reservoir, is attached a valve 0 for cut ting off that source of force when necessary, and between said valve and diaphragm dis attached an air-chamber p, with axially-opposed cocks q and r to provide a replenishable air-cushion and to relieve all shock or chattering of the governor and its connected phragin and a regulator-valve, ofan end-fulcrumed and adjustably-stopped lever, actuated by said diaphragm near said fulcrum, and a lever, fulcrumed between its ends,

'whereof the shorter end is attached to said Valve and the longer end Weighted, said 1e- Vers connected by oppositely-threaded rods in a sleeve provided with a hand-Wheel, one 

